3 papers
physics.flu-dyn2020
An alternative derivation of the Germano identity as the residual of the LES equation
Siavash Toosi, Johan Larsson
The Note presents an alternative derivation and interpretation of the Germano identity and its error, showing that the Germano identity error directly estimates the residual of the…
physics.comp-ph2019
Towards systematic grid selection in LES: iterative identification of the coarse-graining length scale by minimizing the solution sensitivity
Siavash Toosi, Johan Larsson
The accuracy of a large eddy simulation (LES) is determined by the accuracy of the model used to describe the effect of unresolved scales, the numerical errors of the resolved scal…
physics.flu-dyn2016
Toward real-time high-fidelity simulation using integral boundary layer modeling
Alexandre Marques, Qiqi Wang, Johan Larsson +2
One of the greatest challenges to using large-eddy simulations (LES) in engineering applications is the large number of grid points required near walls. To mitigate this issue, res…